Title :
Design and experiment research of integrated EMI filter based on flexible multi-layer foils
Author :
Wu, Xiaofeng ; Wen, Zhiwei ; Xu, Dehong ; Okuma, Yasuhiro ; Mino, Kazuaki
Author_Institution :
Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
A novel passive integration structure based on flexible multi-layer foils was proposed for EMI filter in switching-mode power supply. Common mode (CM) inductors and capacitors, differential mode (DM) inductors and capacitors were all integrated in a single unit. This passive integration applied flexible multi-layer foils (FML). Prototypes were implemented for an 1 kW switching power supply. The conductive EMI testing result was presented. The temperature rising and efficiency curves of the integrated EMI filter were also presented. In comparison with the discrete EMI filter, the prototype in this paper can reduce the volume by 32%.
Keywords :
capacitor switching; electromagnetic interference; power filters; switched mode power supplies; common mode capacitors; common mode inductors; differential mode capacitors; differential mode inductors; flexible multi-layer foils; integrated EMI filter; passive integration; switching-mode power supply; Capacitors; Delta modulation; Electromagnetic interference; Inductors; Passive filters; Power filters; Power supplies; Prototypes; Temperature; Testing; EMI filter; FML foil; Passive integration; Power density;
Conference_Titel :
Power Electronics Conference (IPEC), 2010 International
Conference_Location :
Sapporo
Print_ISBN :
978-1-4244-5394-8
DOI :
10.1109/IPEC.2010.5544556
